Steel Beam Sizes / Europe / CHS / CHS 273×12.5
CHS 273×12.5 Steel Beam Dimensions and Properties
EN Circular hollow sections · v2026.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
CHS 273×12.5 dimensions
Not to scale. Dimensions shown for reference.
Section properties
Symbols match the steel section finder. Imperial and metric values are shown side by side.
| Property | Imperial | Metric |
|---|---|---|
| Weight | 53.96 lb/ft | 80.30 kg/m |
| OD | 10.748 in | 273.000 mm |
| t | 0.492 in | 12.500 mm |
| Area | 15.81 in² | 10,200.00 mm² |
| Ix | 209.02 in⁴ | 87,000,000 mm⁴ |
| Iy | 209.02 in⁴ | 87,000,000 mm⁴ |
| Sx | 38.87 in³ | 637,000.00 mm³ |
| Sy | 38.87 in³ | 637,000.00 mm³ |
| Zx | 51.81 in³ | 849,000.00 mm³ |
| Zy | 51.81 in³ | 849,000.00 mm³ |
| rx | 3.63 in | 92.20 mm |
| ry | 3.63 in | 92.20 mm |
| J | 418.04 in⁴ | 174,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus CHS 273×12.5.
Lighter in Circular hollow sections
CHS 219.1×16
- Weight
- 80.1 kg/m (-0.2%)
- Depth
- — mm
- Ix
- 53,000,000 mm⁴ (-39%)
Heavier in Circular hollow sections
CHS 244.5×14.2
- Weight
- 80.6 kg/m (+0.4%)
- Depth
- — mm
- Ix
- 68,400,000 mm⁴ (-21%)
Closest Iₓ in Circular hollow sections
CHS 323.9×7.1
- Weight
- 55.5 kg/m (-31%)
- Depth
- — mm
- Ix
- 88,700,000 mm⁴ (+2.0%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology